Amino Acid Chirality and Abiotic Origin
Analysis of amino acids from a meteorite sample indicates equal proportions of L- and D-enantiomers. Which statement best explains why this finding supports an abiotic origin for these molecules over an origin based on contamination from Earth?
A
Meteorites have been exposed to extreme temperatures
B
Meteorites contain minerals not found on Earth
C
Space environments have higher radiation levels
D
Biological systems predominantly use L-amino acids
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